:root{--brand:#4f46e5;--brand2:#8b5cf6;--grad:linear-gradient(135deg,#6366f1,#8b5cf6);--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--bg:#f8fafc;--card:#ffffff;--gold:#f59e0b;--radius:16px;--shadow:0 10px 30px rgba(15,23,42,.08);--shadow-lg:0 24px 60px rgba(79,70,229,.18)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px;overflow-x:hidden}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
/* 导航 */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;transition:background .3s,box-shadow .3s,backdrop-filter .3s;background:transparent}
.nav.scrolled{background:rgba(15,23,42,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 4px 24px rgba(0,0,0,.18)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.nav-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:#fff}
.nav-logo img{height:32px;width:auto;border-radius:6px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:6px;padding:10px 14px;color:#fff;font-size:15px;font-weight:500;border-radius:10px;transition:background .2s}
.nav-link:hover{background:rgba(255,255,255,.14)}
.arr{transition:transform .3s;font-size:11px;opacity:.8}
.nav-item:hover .arr{transform:rotate(180deg)}
.dropdown{position:absolute;top:calc(100% + 10px);left:0;min-width:220px;background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:var(--ink);font-size:14px;transition:background .2s,color .2s}
.dropdown a:hover{background:#eef2ff;color:var(--brand)}
.dd-ic{font-size:15px}
.nav-cta{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:12px;font-weight:600;font-size:15px;transition:.25s;white-space:nowrap}
.btn-ghost{border:1.5px solid rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-grad{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(99,102,241,.35)}
.btn-grad:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(99,102,241,.45)}
.btn-lg{padding:15px 32px;font-size:16px}
.btn-block{width:100%}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:6px;z-index:1001}
.hamburger span{width:26px;height:2.5px;background:#fff;border-radius:2px;transition:.3s}
/* Hero */
.hero{position:relative;padding:150px 0 90px;background:radial-gradient(1200px 600px at 80% -10%,rgba(139,92,246,.35),transparent 60%),radial-gradient(1000px 500px at 0% 10%,rgba(99,102,241,.3),transparent 55%),linear-gradient(160deg,#1e1b4b,#312e81 50%,#1e1b4b);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='rgba(255,255,255,.06)' stroke-width='1'%3E%3Cpath d='M0 30h60M30 0v60'/%3E%3C/g%3E%3C/svg%3E");pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);font-size:13px;margin-bottom:22px}
.hero-badge b{color:#c4b5fd}
.hero h1{font-size:52px;line-height:1.18;font-weight:800;letter-spacing:-1px;margin-bottom:18px}
.hero h1 .hl{background:linear-gradient(90deg,#a5b4fc,#c4b5fd,#f0abfc);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:19px;color:#cbd5e1;max-width:520px;margin-bottom:32px}
.hero-btns{display:flex;gap:14px;margin-bottom:42px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap}
.hstat b{font-size:34px;font-weight:800;display:block;line-height:1.1}
.hstat b span{font-size:18px;color:#a5b4fc}
.hstat p{font-size:14px;color:#94a3b8;margin-top:4px}
/* 演示器 */
.demo{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:18px;backdrop-filter:blur(10px);box-shadow:0 30px 80px rgba(0,0,0,.3)}
.demo-window{background:#fff;border-radius:14px;overflow:hidden;color:var(--ink);box-shadow:0 10px 30px rgba(0,0,0,.2)}
.demo-head{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#f1f5f9;border-bottom:1px solid var(--line)}
.dot{width:11px;height:11px;border-radius:50%}
.dot.r{background:#f87171}.dot.y{background:#fbbf24}.dot.g{background:#34d399}
.demo-title{margin-left:8px;font-size:13px;font-weight:600;color:#475569}
.demo-body{display:grid;grid-template-columns:220px 1fr;height:380px}
.demo-lib{border-right:1px solid var(--line);display:flex;flex-direction:column;background:#f8fafc;min-height:0}
.demo-lib-head{padding:12px;border-bottom:1px solid var(--line)}
.demo-search{width:100%;padding:8px 12px;border:1px solid var(--line);border-radius:8px;font-size:13px;outline:none}
.demo-search:focus{border-color:var(--brand)}
.demo-cats{padding:10px 12px 6px;display:flex;flex-wrap:wrap;gap:6px}
.cat{font-size:11px;padding:4px 10px;border-radius:999px;background:#eef2ff;color:var(--brand);cursor:pointer;transition:.2s}
.cat.on{background:var(--grad);color:#fff}
.demo-scripts{flex:1;overflow-y:auto;padding:8px 10px 12px;min-height:0}
.script{background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 11px;margin-bottom:8px;font-size:12.5px;cursor:pointer;transition:.2s;color:#334155}
.script:hover{border-color:var(--brand);box-shadow:0 4px 12px rgba(79,70,229,.15);transform:translateX(3px)}
.script b{display:block;font-size:12.5px;color:var(--ink);margin-bottom:3px}
.script span{color:#64748b;font-size:11.5px}
.demo-chat{display:flex;flex-direction:column;background:#fff;min-height:0}
.demo-msgs{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;background:#fafbfd;min-height:0}
.msg{max-width:80%;padding:10px 14px;border-radius:14px;font-size:13.5px;line-height:1.5;animation:pop .3s}
.msg.cust{align-self:flex-start;background:#fff;border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.me{align-self:flex-end;background:var(--grad);color:#fff;border-bottom-right-radius:4px}
.demo-input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.demo-input textarea{flex:1;resize:none;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:13px;height:44px;outline:none;font-family:inherit}
.demo-input textarea:focus{border-color:var(--brand)}
.demo-send{background:var(--grad);color:#fff;border-radius:10px;padding:0 18px;font-weight:600;font-size:13px}
@keyframes pop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
/* 通用板块 */
.section{padding:88px 0}
.section-alt{background:#fff}
.sec-head{text-align:center;max-width:680px;margin:0 auto 56px}
.sec-tag{display:inline-block;font-size:13px;font-weight:700;color:var(--brand);background:#eef2ff;padding:6px 16px;border-radius:999px;margin-bottom:16px;letter-spacing:.5px}
.sec-title{font-size:38px;font-weight:800;letter-spacing:-.5px;line-height:1.25;margin-bottom:16px}
.sec-sub{font-size:17px;color:var(--muted)}
/* 功能卡片 */
.grid{display:grid;gap:24px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.3s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#c7d2fe}
.card .ic{width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,#eef2ff,#f5f3ff);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{font-size:14.5px;color:var(--muted)}
/* 场景 */
.scenario{text-align:left;padding:26px;border-radius:var(--radius);background:linear-gradient(160deg,#f8fafc,#f1f5f9);border:1px solid var(--line);transition:.3s}
.scenario:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.scenario .num{font-size:30px;font-weight:800;color:#c7d2fe;margin-bottom:10px}
.scenario h3{font-size:18px;margin-bottom:8px}
.scenario p{font-size:14px;color:var(--muted)}
/* 特色板块：话术 */
.feature-split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.feature-split .txt h2{font-size:32px;font-weight:800;margin-bottom:16px}
.feature-split .txt p{color:var(--muted);margin-bottom:20px;font-size:16px}
.check-list li{display:flex;align-items:flex-start;gap:10px;padding:9px 0;font-size:15px}
.check-list li::before{content:"✓";flex:none;width:22px;height:22px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;margin-top:2px}
/* 价格 */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{background:#fff;border:1.5px solid var(--line);border-radius:20px;padding:34px 30px;display:flex;flex-direction:column;position:relative;transition:.3s}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.price-card.hot{border-color:transparent;background:linear-gradient(160deg,#4f46e5,#7c3aed);color:#fff;transform:scale(1.03);box-shadow:var(--shadow-lg)}
.price-card.hot:hover{transform:scale(1.03) translateY(-6px)}
.hot-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--gold);color:#fff;font-size:12px;font-weight:700;padding:5px 16px;border-radius:999px;box-shadow:0 4px 12px rgba(245,158,11,.4)}
.price-name{font-size:17px;font-weight:700;margin-bottom:14px}
.price-card .price{font-size:44px;font-weight:800;line-height:1;margin-bottom:6px}
.price-card .price small{font-size:15px;font-weight:500;opacity:.7}
.price-desc{font-size:13px;opacity:.75;margin-bottom:22px}
.price-feats{flex:1;margin-bottom:26px}
.price-feats li{padding:8px 0;font-size:14.5px;display:flex;gap:9px;align-items:flex-start}
.price-feats li::before{content:"✓";flex:none;font-weight:800}
.price-card.hot .btn-grad{background:#fff;color:var(--brand);box-shadow:none}
.price-card:not(.hot) .btn-grad{background:var(--grad);color:#fff}
/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;font-size:16.5px;font-weight:600;text-align:left;color:var(--ink)}
.faq-q .plus{flex:none;font-size:24px;font-weight:300;color:var(--brand);transition:.3s}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s}.faq-item.open .faq-a{max-height:800px}
.faq-a-inner{padding:0 24px 22px;color:var(--muted);font-size:15px}
.faq-a-inner ol{margin-left:20px;list-style:decimal}
.faq-a-inner li{margin:6px 0}
/* 评价 */
.tst-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tst{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;flex-direction:column;gap:16px}
.tst .stars{color:#f59e0b;letter-spacing:2px}
.tst p{font-size:15px;color:#334155;flex:1}
.tst-user{display:flex;align-items:center;gap:12px}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;flex:none}
.tst-user b{display:block;font-size:15px}
.tst-user span{font-size:12.5px;color:var(--muted)}
/* 新闻卡片 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.news-card img{height:180px;width:100%;object-fit:cover}
.news-card .nc-body{padding:20px;display:flex;flex-direction:column;flex:1}
.nc-tag{font-size:12px;color:var(--brand);font-weight:600;margin-bottom:10px}
.news-card h3{font-size:17px;line-height:1.5;margin-bottom:10px}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{font-size:13.5px;color:var(--muted);flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.nc-date{font-size:12.5px;color:#94a3b8;margin-top:14px}
/* CTA */
.cta{position:relative;padding:80px 0;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;text-align:center;overflow:hidden}
.cta::before{content:"";position:absolute;width:400px;height:400px;border-radius:50%;background:rgba(255,255,255,.08);top:-150px;left:-100px}
.cta::after{content:"";position:absolute;width:360px;height:360px;border-radius:50%;background:rgba(255,255,255,.08);bottom:-140px;right:-80px}
.cta h2{font-size:36px;font-weight:800;margin-bottom:14px;position:relative;z-index:2}
.cta p{font-size:17px;opacity:.9;margin-bottom:28px;position:relative;z-index:2}
.cta .btn-grad{background:#fff;color:var(--brand);position:relative;z-index:2}
/* 页脚 */
.footer{background:#0f172a;color:#cbd5e1;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer a{display:block;padding:6px 0;font-size:14px;color:#94a3b8;transition:.2s}
.footer a:hover{color:#fff}
.footer-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#fff;margin-bottom:16px}
.footer-logo img{height:30px;border-radius:6px}
.footer-about{font-size:14px;color:#94a3b8;max-width:280px}
.footer-bottom{border-top:1px solid #1e293b;padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:#64748b}
/* 面包屑 */
.crumb{font-size:13.5px;color:var(--muted);margin-bottom:18px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumb a:hover{color:var(--brand)}
.crumb span{color:#94a3b8}
/* 下载页 */
.dl-hero{background:radial-gradient(1200px 600px at 80% -10%,rgba(139,92,246,.35),transparent 60%),linear-gradient(160deg,#1e1b4b,#312e81 55%,#1e1b4b);color:#fff;padding:150px 0 90px}
.dl-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.dl-meta{display:flex;gap:34px;margin:30px 0 34px;flex-wrap:wrap}
.dl-meta b{font-size:26px;display:block}
.dl-meta span{font-size:13px;color:#94a3b8}
.ver-list{display:grid;gap:16px}
.ver-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.ver-card .v-name{font-size:18px;font-weight:700}
.ver-card .v-size{font-size:13px;color:var(--muted)}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.req-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center}
.req-item .ic{font-size:28px;margin-bottom:10px}
.req-item b{display:block;font-size:15px;margin-bottom:6px}
.req-item p{font-size:13.5px;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;text-align:center;position:relative}
.step .s-num{width:44px;height:44px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;margin:0 auto 14px}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--muted)}
/* 新闻详情 */
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:44px;align-items:start;padding-top:120px}
.article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:40px;overflow:hidden}
.article .cover{border-radius:14px;overflow:hidden;margin-bottom:28px}
.article h1{font-size:32px;font-weight:800;line-height:1.35;margin-bottom:18px}
.article-meta{display:flex;gap:20px;font-size:13.5px;color:var(--muted);margin-bottom:26px;flex-wrap:wrap}
.article-body{font-size:16px;color:#334155;line-height:1.85}
.article-body h2{font-size:23px;font-weight:800;color:var(--ink);margin:34px 0 14px;padding-top:8px;scroll-margin-top:90px}
.article-body p{margin-bottom:18px}
.article-body .lead{font-size:17px;color:#1e293b;font-weight:500}
.article-body img{border-radius:12px;margin:22px 0}
.article-body blockquote{border-left:4px solid var(--brand);background:#f8fafc;padding:18px 22px;border-radius:0 12px 12px 0;margin:22px 0;font-style:italic;color:#475569}
.article-foot{margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.comments{margin-top:40px}
.comments h3{font-size:20px;font-weight:800;margin-bottom:22px}
.comment{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid #f1f5f9}
.comment .avatar{width:40px;height:40px;font-size:15px}
.comment b{font-size:14.5px;display:block}
.comment .c-date{font-size:12px;color:#94a3b8}
.comment p{font-size:14px;color:#475569;margin-top:5px}
.pager{display:flex;justify-content:space-between;gap:12px;margin-top:26px;flex-wrap:wrap}
.pager a{flex:1;min-width:160px;border:1px solid var(--line);border-radius:12px;padding:16px;transition:.2s}
.pager a:hover{border-color:var(--brand);box-shadow:var(--shadow)}
.pager a span{display:block;font-size:12px;color:var(--muted)}
.pager a b{font-size:14.5px;color:var(--ink)}
/* 侧边栏 */
.sidebar{position:sticky;top:90px;display:flex;flex-direction:column;gap:22px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 6px 20px rgba(15,23,42,.05)}
.side-card h4{font-size:16px;font-weight:800;margin-bottom:16px;padding-left:12px;border-left:4px solid var(--brand)}
.toc{position:relative}
.toc-item{position:relative;padding:8px 0 8px 20px;font-size:14px;color:var(--muted);cursor:pointer;transition:.2s;border-left:2px solid var(--line)}
.toc-item::before{content:"";position:absolute;left:-5px;top:50%;transform:translateY(-50%);width:8px;height:8px;border-radius:50%;background:#cbd5e1;transition:.2s}
.toc-item.active{color:var(--brand);font-weight:700;border-left-color:var(--brand)}
.toc-item.active::before{background:var(--brand);box-shadow:0 0 0 3px rgba(99,102,241,.2)}
.toc-item:hover{color:var(--brand)}
.hot-item{display:flex;align-items:center;gap:12px;padding:9px 0;border-bottom:1px solid #f1f5f9}
.hot-item:last-child{border-bottom:none}
.hot-rank{flex:none;width:26px;height:26px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:#fff;background:#cbd5e1;transition:.2s}
.hot-rank.r1{background:linear-gradient(135deg,#f59e0b,#f97316)}
.hot-rank.r2{background:linear-gradient(135deg,#6366f1,#8b5cf6)}
.hot-rank.r3{background:linear-gradient(135deg,#f43f5e,#fb7185)}
.hot-item a{font-size:13.5px;color:#334155;line-height:1.4;transition:.2s}
.hot-item:hover a{color:var(--brand)}
.hot-item:hover .hot-rank{transform:scale(1.15)}
.cat-wrap{display:flex;flex-wrap:wrap;gap:8px}
.cat-tag{font-size:12.5px;padding:6px 13px;border-radius:999px;background:#f1f5f9;color:#475569;transition:.2s}
.cat-tag:hover{color:var(--brand);border:1px solid var(--brand);background:#eef2ff;transform:translateY(-2px)}
/* 新闻列表页 */
.news-page-head{padding:150px 0 60px;background:linear-gradient(160deg,#1e1b4b,#312e81);color:#fff}
.news-page-head h1{font-size:42px;font-weight:800;margin-bottom:12px}
.news-page-head p{color:#cbd5e1;font-size:17px}
/* 404 */
.e404{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;background:linear-gradient(160deg,#1e1b4b,#312e81);color:#fff;padding:24px}
.e404 h1{font-size:120px;font-weight:800;line-height:1;background:linear-gradient(90deg,#a5b4fc,#c4b5fd);-webkit-background-clip:text;background-clip:text;color:transparent}
.e404 h2{font-size:28px;margin:18px 0 12px}
.e404 p{color:#cbd5e1;margin-bottom:8px}
.e404 .count{font-size:15px;color:#a5b4fc;margin-top:16px}
/* sitemap */
.sitemap{padding-top:130px}
.sitemap h1{font-size:36px;font-weight:800;margin-bottom:32px}
.sitemap-group{margin-bottom:28px}
.sitemap-group h2{font-size:20px;font-weight:800;margin-bottom:14px;padding-left:12px;border-left:4px solid var(--brand)}
.sitemap-group ul{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 20px}
.sitemap-group li a{color:var(--muted);font-size:15px;transition:.2s}
.sitemap-group li a:hover{color:var(--brand)}
/* 响应式 */
@media(max-width:992px){
.hero{padding:120px 0 70px}
.hero-grid,.dl-grid,.feature-split{grid-template-columns:1fr;gap:44px}
.hero h1{font-size:40px}
.grid-4{grid-template-columns:repeat(2,1fr)}
.grid-3,.pricing,.tst-grid,.news-grid,.req-grid,.steps{grid-template-columns:repeat(2,1fr)}
.hamburger{display:flex}
.nav-links{position:fixed;top:0;right:-100%;width:78%;max-width:340px;height:100vh;background:#fff;flex-direction:column;align-items:stretch;padding:90px 22px 30px;gap:6px;transition:right .3s;box-shadow:-20px 0 60px rgba(0,0,0,.2);overflow-y:auto}
.nav-links.open{right:0}
.nav-link{color:var(--ink);padding:13px 14px;justify-content:space-between}
.nav-link:hover{background:#f1f5f9}
.dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;min-width:0;padding:0 0 0 12px;display:none}
.nav-item.open .dropdown{display:block}
.nav-cta .btn-ghost{display:none}
.article-layout{grid-template-columns:1fr}
.sidebar{position:static}
.demo-body{grid-template-columns:1fr;height:auto}
.demo-lib{border-right:none;border-bottom:1px solid var(--line);max-height:220px}
.footer-grid{grid-template-columns:1fr 1fr}
.sitemap-group ul{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
.section{padding:64px 0}
.sec-title{font-size:30px}
.hero h1{font-size:32px}
.hero-stats{gap:26px}
.hstat b{font-size:28px}
.grid-4,.grid-3,.pricing,.tst-grid,.news-grid,.req-grid,.steps{grid-template-columns:1fr}
.price-card.hot{transform:none}
.price-card.hot:hover{transform:translateY(-6px)}
.demo-body{grid-template-columns:1fr}
.article{padding:24px}
.article h1{font-size:25px}
.article-layout{padding-top:100px}
}
@media(max-width:480px){
.wrap{padding:0 16px}
.hero{padding:105px 0 56px}
.hero h1{font-size:28px}
.hero-sub{font-size:16px}
.hero-btns .btn{width:100%}
.btn-lg{padding:14px 22px}
.sec-title{font-size:26px}
.grid-2,.footer-grid{grid-template-columns:1fr}
.demo-body{grid-template-columns:1fr}
.dl-meta{gap:22px}
.ver-card{flex-direction:column;align-items:flex-start}
.article{padding:18px}
.article-body{font-size:15px}
.sitemap-group ul{grid-template-columns:1fr}
.nav-inner{height:62px}
}